OPC Foundation
  • Documents
  • NodeSets
  • Search
11.16 DataDefinitionType Structure

The DataDefinitionType structure contains the metadata that describes a parameter.

The DataDefinitionType structure is defined in the following table.

Table 216 – DataDefinitionType Structure

Name

Type

Description

DataDefinitionType

structure

Subtype of DataDescriptionType. See above.

EngineeringUnits

0:EUInformation

Unit of measure for the parameter.

DisplayFormat

0:String

Display format for visualization. The same display format shall be used in the HMI.

Dependency

ParameterDependencyEnumeration

The dependency of the parameter with respect to machine and brand.

DataType

0:String

Describes the data type of the data point, e.g. FLOAT, INT, STRING, etc.

UserSubset

0:Boolean

Used by the user to identify a subset of the dataset that is of interest.

ControlRange

0:Range

The range where the parameter actual values is considered in control.

AlarmRange

0:Range

Outside this range, the underlying system generates an alarm for the parameter.

Please report errors or issues with the site to webmaster.

Copyright © 2023 - OPC Foundation